﻿<!DOCTYPE html>
<HTML>
<HEAD>
  <TITLE> ZTREE DEMO - addNodes / editName / removeNode / removeChildNodes</TITLE>
  <meta http-equiv="content-type" content="text/html; charset=UTF-8">
  <link rel="stylesheet" href="../../../css/demo.css" type="text/css">
  <link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
  <script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
  <script type="text/javascript" src="../../../js/jquery.ztree.core-3.5.js"></script>
  <script type="text/javascript" src="../../../js/jquery.ztree.excheck-3.5.js"></script>
  <script type="text/javascript" src="../../../js/jquery.ztree.exedit-3.5.js"></script>
  <SCRIPT type="text/javascript">
    <!--
    var setting = {
      view: {
        selectedMulti: false
      },
      edit: {
        enable: true,
        showRemoveBtn: false,
        showRenameBtn: false
      },
      data: {
        keep: {
          parent: true,
          leaf: true
        },
        simpleData: {
          enable: true
        }
      },
      callback: {
        beforeDrag: beforeDrag,
        beforeRemove: beforeRemove,
        beforeRename: beforeRename,
        onRemove: onRemove
      }
    };

    var zNodes = [
      { id: 1, pId: 0, name: "父节点 1", open: true },
      { id: 11, pId: 1, name: "叶子节点 1-1" },
      { id: 12, pId: 1, name: "叶子节点 1-2" },
      { id: 13, pId: 1, name: "叶子节点 1-3" },
      { id: 2, pId: 0, name: "父节点 2", open: true },
      { id: 21, pId: 2, name: "叶子节点 2-1" },
      { id: 22, pId: 2, name: "叶子节点 2-2" },
      { id: 23, pId: 2, name: "叶子节点 2-3" },
      { id: 3, pId: 0, name: "父节点 3", open: true },
      { id: 31, pId: 3, name: "叶子节点 3-1" },
      { id: 32, pId: 3, name: "叶子节点 3-2" },
      { id: 33, pId: 3, name: "叶子节点 3-3" }
    ];
    var log, className = "dark";

    function beforeDrag(treeId, treeNodes) {
      return false;
    }

    function beforeRemove(treeId, treeNode) {
      className = (className === "dark" ? "" : "dark");
      showLog("[ " + getTime() + " beforeRemove ]&nbsp;&nbsp;&nbsp;&nbsp; " + treeNode.name);
      return confirm("确认删除 节点 -- " + treeNode.name + " 吗？");
    }

    function onRemove(e, treeId, treeNode) {
      showLog("[ " + getTime() + " onRemove ]&nbsp;&nbsp;&nbsp;&nbsp; " + treeNode.name);
    }

    function beforeRename(treeId, treeNode, newName) {
      if (newName.length == 0) {
        alert("节点名称不能为空.");
        var zTree = $.fn.zTree.getZTreeObj("treeDemo");
        setTimeout(function() { zTree.editName(treeNode) }, 10);
        return false;
      }
      return true;
    }

    function showLog(str) {
      if (!log) log = $("#log");
      log.append("<li class='" + className + "'>" + str + "</li>");
      if (log.children("li").length > 8) {
        log.get(0).removeChild(log.children("li")[0]);
      }
    }

    function getTime() {
      var now = new Date(),
        h = now.getHours(),
        m = now.getMinutes(),
        s = now.getSeconds(),
        ms = now.getMilliseconds();
      return (h + ":" + m + ":" + s + " " + ms);
    }

    var newCount = 1;

    function add(e) {
      var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
        isParent = e.data.isParent,
        nodes = zTree.getSelectedNodes(),
        treeNode = nodes[0];
      if (treeNode) {
        treeNode = zTree.addNodes(treeNode, { id: (100 + newCount), pId: treeNode.id, isParent: isParent, name: "new node" + (newCount++) });
      } else {
        treeNode = zTree.addNodes(null, { id: (100 + newCount), pId: 0, isParent: isParent, name: "new node" + (newCount++) });
      }
      if (treeNode) {
        zTree.editName(treeNode[0]);
      } else {
        alert("叶子节点被锁定，无法增加子节点");
      }
    };

    function edit() {
      var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
        nodes = zTree.getSelectedNodes(),
        treeNode = nodes[0];
      if (nodes.length == 0) {
        alert("请先选择一个节点");
        return;
      }
      zTree.editName(treeNode);
    };

    function remove(e) {
      var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
        nodes = zTree.getSelectedNodes(),
        treeNode = nodes[0];
      if (nodes.length == 0) {
        alert("请先选择一个节点");
        return;
      }
      var callbackFlag = $("#callbackTrigger").attr("checked");
      zTree.removeNode(treeNode, callbackFlag);
    };

    function clearChildren(e) {
      var zTree = $.fn.zTree.getZTreeObj("treeDemo"),
        nodes = zTree.getSelectedNodes(),
        treeNode = nodes[0];
      if (nodes.length == 0 || !nodes[0].isParent) {
        alert("请先选择一个父节点");
        return;
      }
      zTree.removeChildNodes(treeNode);
    };

    $(document).ready(function() {
      $.fn.zTree.init($("#treeDemo"), setting, zNodes);
      $("#addParent").bind("click", { isParent: true }, add);
      $("#addLeaf").bind("click", { isParent: false }, add);
      $("#edit").bind("click", edit);
      $("#remove").bind("click", remove);
      $("#clearChildren").bind("click", clearChildren);
    });
    //-->
  </SCRIPT>
</HEAD>

<BODY>
<h1>用 zTree 方法 增 / 删 / 改 节点</h1>
<h6>[ 文件路径: exedit/edit_fun.html ]</h6>
<div class="content_wrap">
  <div class="zTreeDemoBackground left">
    <ul id="treeDemo" class="ztree"></ul>
  </div>
  <div class="right">
    <ul class="info">
      <li class="title">
        <h2>1、addNodes / editName / removeNode / removeChildNodes 方法操作说明</h2>
        <ul class="list">
          <li>利用 addNodes / editName / removeNode / removeChildNodes 方法也可以实现 增 / 删 / 改 节点的目的，这里简单演示使用方法</li>
          <li>cancelEditName 方法仅仅是在节点进入名称编辑状态时有效，请在必要时使用，Demo 不进行此方法的演示</li>
          <li class="highlight_red">利用 setting.data.keep.parent / leaf 属性 实现了父节点、叶子节点的状态锁定</li>
          <li>
            <p>
              对节点进行 增 / 删 / 改，试试看：<br/>
              &nbsp;&nbsp;&nbsp;&nbsp;<input type="checkbox" id="callbackTrigger" checked/> removeNode 方法是否触发 callback<br/>
              &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="addParent" href="#" title="增加父节点" onclick="return false;">增加父节点</a> ]
              &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="addLeaf" href="#" title="增加叶子节点" onclick="return false;">增加叶子节点</a> ]
              &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="edit" href="#" title="编辑名称" onclick="return false;">编辑名称</a> ]<br/>
              &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="remove" href="#" title="删除节点" onclick="return false;">删除节点</a> ]
              &nbsp;&nbsp;&nbsp;&nbsp;[ <a id="clearChildren" href="#" title="清空子节点" onclick="return false;">清空子节点</a> ]<br/>
              remove log:<br/>
              <ul id="log" class="log"></ul>
            </p>
          </li>
          <li class="highlight_red">使用 zTreeObj.addNodes / cancelEditName / editName / removeNode / removeChildNodes 方法，详细请参见 API 文档中的相关内容</li>
        </ul>
      </li>
      <li class="title">
        <h2>2、setting 配置信息说明</h2>
        <ul class="list">
          <li>同 "基本 增 / 删 / 改 节点"</li>
          <li class="highlight_red">保持 父 / 叶子 节点状态，需要设置 setting.data.keep.parent / leaf 属性，详细请参见 API 文档中的相关内容</li>
        </ul>
      </li>
      <li class="title">
        <h2>3、treeNode 节点数据说明</h2>
        <ul class="list">
          <li>同 "基本 增 / 删 / 改 节点"</li>
        </ul>
      </li>
    </ul>
  </div>
</div>
</BODY>
</HTML>